The probability of winning a certain lottery is 1/72,639. For people who play 664 times find the standard deviation for the number of wins

0.0956

Step-by-step explanation:

The probability of winning a certain lottery is 1/72,639. For people who play 664 times,

find the standard deviation for the random variable X, the number of wins.

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std = = sqr

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= 0.0956

find the magnitude of the trig term  

csc

(

x

)

−

1

by taking the absolute value of the coefficient.

1

find the lower bound of the range.

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y

=

−

2

find the upper bound of the range.

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y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

0

}

step-by-step explanation: